fix(ci): remove all forklift usage and update runtime-interface UI test stderr

- Remove forklift cargo wrapper from build-only-wasm.sh (direct cause of
  build-linux-stable failures in container jobs)
- Add .env_remove("RUSTC_WRAPPER") to wasm-builder cargo subprocess to
  prevent inheriting forklift from Parity CI container images
- Remove forklift from cargo-check-runtimes action and cmd.py benchmark
  build command
- Update test_cmd.py expectations to match forklift removal
- Update no_feature_gated_method.stderr for rebrand: substrate_runtime →
  bizinikiwi_runtime, sp_runtime_interface_proc_macro →
  pezsp_runtime_interface_proc_macro, and expanded feature list

pezkuwi/scripts/build-only-wasm.sh

@@ -14,11 +14,7 @@ fi
 WASM_BUILDER_RUNNER="$PROJECT_ROOT/target/release/wbuild-runner/$1"
 
 fl_cargo () {
-    if command -v forklift >/dev/null 2>&1; then
-        forklift cargo "$@";
-    else
-        cargo "$@";
-    fi
+    cargo "$@";
 }
 
 if [ -z "$2" ]; then